Remi of course I hear what you are saying but I see this year you increased the widths of all the iSonics but you decreased the tail width. Why is that? If I had to guess I would say that once the board is already planning with a decrease in tail width it's quicker and easier to turn but doesn't tail width help in early planning and of course it helps when going through the lulls. So what was the reasoning behind the decrease in the tail widths if you can say? Many tks.